| Safe Haskell | None |
|---|---|
| Language | GHC2021 |
SDL3.Sys.Mouse
Contents
Description
Any GUI application has to deal with the mouse, and SDL provides functions to manage mouse input and the displayed cursor.
Most interactions with the mouse will come through the event subsystem. Moving a mouse generates an SDL_EVENT_MOUSE_MOTION event, pushing a button generates SDL_EVENT_MOUSE_BUTTON_DOWN, etc, but one can also query the current state of the mouse at any time with .getMouseState
For certain games, it's useful to disassociate the mouse cursor from mouse input. An FPS, for example, would not want the player's motion to stop as the mouse hits the edge of the window. For these scenarios, use , which hides the cursor, grabs mouse input to the window, and reads mouse input no matter how far it moves.setWindowRelativeMouseMode
Games that want the system to track the mouse but want to draw their own cursor can use and hideCursor. It might be more efficient to let the system manage the cursor, if possible, using showCursor with a custom image made through setCursor, or perhaps just a specific system cursor from createColorCursor.createSystemCursor
SDL can, on many platforms, differentiate between multiple connected mice, allowing for interesting input scenarios and multiplayer games. They can be enumerated with , and SDL will send SDL_EVENT_MOUSE_ADDED and SDL_EVENT_MOUSE_REMOVED events as they are connected and unplugged.getMice
Since many apps only care about basic mouse input, SDL offers a virtual mouse device for touch and pen input, which often can make a desktop application work on a touchscreen phone without any code changes. Apps that care about touch/pen separately from mouse input should filter out events with a which field of SDL_TOUCH_MOUSEID/SDL_PEN_MOUSEID. This is a unique ID for a mouse for the time it is connected to the system, and is never reused for the lifetime of the application.
If the mouse is disconnected and reconnected, it will get a new ID.
The value 0 is an invalid ID.
FFI conventions
Unsuffixed aliases are unsafe foreign imports; aliases suffixed Safe are safe. Functions whose callbacks fire during the call export only the Safe alias (the genuine unsafe import stays reachable under SDL3.Sys.Bindgen.Mouse.Unsafe); functions curated unsafe-only export only the unsuffixed one. Each alias's documentation records its flavor and rationale.
Full conventions: SDL3.Sys.
Since: 3.2.0
Synopsis
- module SDL3.Sys.Bindgen.Mouse
- pattern SDL_BUTTON_LMASK :: SDL_MouseButtonFlags
- pattern SDL_BUTTON_MMASK :: SDL_MouseButtonFlags
- pattern SDL_BUTTON_RMASK :: SDL_MouseButtonFlags
- pattern SDL_BUTTON_X1MASK :: SDL_MouseButtonFlags
- pattern SDL_BUTTON_X2MASK :: SDL_MouseButtonFlags
- pattern SDL_TOUCH_MOUSEID :: SDL_MouseID
- pattern SDL_PEN_MOUSEID :: SDL_MouseID
- hasMouse :: IO Bool
- hasMouseSafe :: IO Bool
- getMice :: Ptr CInt -> IO (Ptr SDL_MouseID)
- getMiceSafe :: Ptr CInt -> IO (Ptr SDL_MouseID)
- getMouseNameForID :: SDL_MouseID -> IO (PtrConst CChar)
- getMouseNameForIDSafe :: SDL_MouseID -> IO (PtrConst CChar)
- getMouseFocus :: IO (Ptr SDL_Window)
- getMouseFocusSafe :: IO (Ptr SDL_Window)
- getMouseState :: Ptr CFloat -> Ptr CFloat -> IO SDL_MouseButtonFlags
- getMouseStateSafe :: Ptr CFloat -> Ptr CFloat -> IO SDL_MouseButtonFlags
- getGlobalMouseState :: Ptr CFloat -> Ptr CFloat -> IO SDL_MouseButtonFlags
- getGlobalMouseStateSafe :: Ptr CFloat -> Ptr CFloat -> IO SDL_MouseButtonFlags
- getRelativeMouseState :: Ptr CFloat -> Ptr CFloat -> IO SDL_MouseButtonFlags
- getRelativeMouseStateSafe :: Ptr CFloat -> Ptr CFloat -> IO SDL_MouseButtonFlags
- warpMouseInWindow :: Ptr SDL_Window -> Float -> Float -> IO ()
- warpMouseInWindowSafe :: Ptr SDL_Window -> Float -> Float -> IO ()
- warpMouseGlobal :: Float -> Float -> IO Bool
- warpMouseGlobalSafe :: Float -> Float -> IO Bool
- setRelativeMouseTransform :: SDL_MouseMotionTransformCallback -> Ptr Void -> IO Bool
- setRelativeMouseTransformSafe :: SDL_MouseMotionTransformCallback -> Ptr Void -> IO Bool
- setWindowRelativeMouseMode :: Ptr SDL_Window -> Bool -> IO Bool
- setWindowRelativeMouseModeSafe :: Ptr SDL_Window -> Bool -> IO Bool
- getWindowRelativeMouseMode :: Ptr SDL_Window -> IO Bool
- getWindowRelativeMouseModeSafe :: Ptr SDL_Window -> IO Bool
- captureMouse :: Bool -> IO Bool
- captureMouseSafe :: Bool -> IO Bool
- createCursor :: PtrConst Uint8 -> PtrConst Uint8 -> Int32 -> Int32 -> Int32 -> Int32 -> IO (Ptr SDL_Cursor)
- createCursorSafe :: PtrConst Uint8 -> PtrConst Uint8 -> Int32 -> Int32 -> Int32 -> Int32 -> IO (Ptr SDL_Cursor)
- createColorCursor :: Ptr SDL_Surface -> Int32 -> Int32 -> IO (Ptr SDL_Cursor)
- createColorCursorSafe :: Ptr SDL_Surface -> Int32 -> Int32 -> IO (Ptr SDL_Cursor)
- createAnimatedCursor :: Ptr SDL_CursorFrameInfo -> Int32 -> Int32 -> Int32 -> IO (Ptr SDL_Cursor)
- createAnimatedCursorSafe :: Ptr SDL_CursorFrameInfo -> Int32 -> Int32 -> Int32 -> IO (Ptr SDL_Cursor)
- createSystemCursor :: SDL_SystemCursor -> IO (Ptr SDL_Cursor)
- createSystemCursorSafe :: SDL_SystemCursor -> IO (Ptr SDL_Cursor)
- setCursor :: Ptr SDL_Cursor -> IO Bool
- setCursorSafe :: Ptr SDL_Cursor -> IO Bool
- getCursor :: IO (Ptr SDL_Cursor)
- getCursorSafe :: IO (Ptr SDL_Cursor)
- getDefaultCursor :: IO (Ptr SDL_Cursor)
- getDefaultCursorSafe :: IO (Ptr SDL_Cursor)
- destroyCursor :: Ptr SDL_Cursor -> IO ()
- destroyCursorSafe :: Ptr SDL_Cursor -> IO ()
- showCursor :: IO Bool
- showCursorSafe :: IO Bool
- hideCursor :: IO Bool
- hideCursorSafe :: IO Bool
- cursorVisible :: IO Bool
- cursorVisibleSafe :: IO Bool
Documentation
module SDL3.Sys.Bindgen.Mouse
Typed constants
pattern SDL_BUTTON_LMASK :: SDL_MouseButtonFlags Source #
Typed constant for macro SDL_BUTTON_LMASK. Combine with .|. from Data.Bits.
pattern SDL_BUTTON_MMASK :: SDL_MouseButtonFlags Source #
Typed constant for macro SDL_BUTTON_MMASK. Combine with .|. from Data.Bits.
pattern SDL_BUTTON_RMASK :: SDL_MouseButtonFlags Source #
Typed constant for macro SDL_BUTTON_RMASK. Combine with .|. from Data.Bits.
pattern SDL_BUTTON_X1MASK :: SDL_MouseButtonFlags Source #
Typed constant for macro SDL_BUTTON_X1MASK. Combine with .|. from Data.Bits.
pattern SDL_BUTTON_X2MASK :: SDL_MouseButtonFlags Source #
Typed constant for macro SDL_BUTTON_X2MASK. Combine with .|. from Data.Bits.
pattern SDL_TOUCH_MOUSEID :: SDL_MouseID Source #
Typed constant for macro SDL_TOUCH_MOUSEID (declared in SDL_touch.h).
pattern SDL_PEN_MOUSEID :: SDL_MouseID Source #
Typed constant for macro SDL_PEN_MOUSEID (declared in SDL_pen.h).
Function aliases
Return whether a mouse is currently connected.
- Returns
- true if a mouse is connected, false otherwise.
- Thread safety
- This function should only be called on the main thread.
- See also
getMice
sdl3-bindgen-sys notes
- FFI safety
- Unsafe foreign import of
SDL_HasMouse. The safe flavor ishasMouseSafe. - Scalars
- The binding generation has mapped C scalars to native Haskell scalars for this function. Pointers and structs are untouched by this best-effort mapping. Higher-level bindings are expected to map structs and pointers as appropriate.
- C declaration
SDL_HasMouse, defined atSDL3/SDL_mouse.h 226:34
Since: 3.2.0
hasMouseSafe :: IO Bool Source #
Return whether a mouse is currently connected.
- Returns
- true if a mouse is connected, false otherwise.
- Thread safety
- This function should only be called on the main thread.
- See also
getMice
sdl3-bindgen-sys notes
- FFI safety
- Safe foreign import of
SDL_HasMouse. The unsafe flavor ishasMouse. - Scalars
- The binding generation has mapped C scalars to native Haskell scalars for this function. Pointers and structs are untouched by this best-effort mapping. Higher-level bindings are expected to map structs and pointers as appropriate.
- C declaration
SDL_HasMouse, defined atSDL3/SDL_mouse.h 226:34
Since: 3.2.0
Arguments
| :: Ptr CInt |
|
| -> IO (Ptr SDL_MouseID) |
Get a list of currently connected mice.
Note that this will include any device or virtual driver that includes mouse functionality, including some game controllers, KVM switches, etc. You should wait for input from a device before you consider it actively in use.
- Returns
- a 0 terminated array of mouse instance IDs or NULL on failure; call
getErrorfor more information. This should be freed withfreewhen it is no longer needed. - Thread safety
- This function should only be called on the main thread.
- See also
getMouseNameForID,hasMouse
sdl3-bindgen-sys notes
- FFI safety
- Unsafe foreign import of
SDL_GetMice. The safe flavor isgetMiceSafe. - C declaration
SDL_GetMice, defined atSDL3/SDL_mouse.h 249:43
Since: 3.2.0
Arguments
| :: Ptr CInt |
|
| -> IO (Ptr SDL_MouseID) |
Get a list of currently connected mice.
Note that this will include any device or virtual driver that includes mouse functionality, including some game controllers, KVM switches, etc. You should wait for input from a device before you consider it actively in use.
- Returns
- a 0 terminated array of mouse instance IDs or NULL on failure; call
getErrorfor more information. This should be freed withfreewhen it is no longer needed. - Thread safety
- This function should only be called on the main thread.
- See also
getMouseNameForID,hasMouse
sdl3-bindgen-sys notes
- FFI safety
- Safe foreign import of
SDL_GetMice. The unsafe flavor isgetMice. - C declaration
SDL_GetMice, defined atSDL3/SDL_mouse.h 249:43
Since: 3.2.0
Arguments
| :: SDL_MouseID |
|
| -> IO (PtrConst CChar) |
Get the name of a mouse.
This function returns "" if the mouse doesn't have a name.
- Returns
- the name of the selected mouse, or NULL on failure; call
getErrorfor more information. - Thread safety
- This function should only be called on the main thread.
- See also
getMice
sdl3-bindgen-sys notes
- FFI safety
- Unsafe foreign import of
SDL_GetMouseNameForID. The safe flavor isgetMouseNameForIDSafe. - C declaration
SDL_GetMouseNameForID, defined atSDL3/SDL_mouse.h 266:42
Since: 3.2.0
getMouseNameForIDSafe Source #
Arguments
| :: SDL_MouseID |
|
| -> IO (PtrConst CChar) |
Get the name of a mouse.
This function returns "" if the mouse doesn't have a name.
- Returns
- the name of the selected mouse, or NULL on failure; call
getErrorfor more information. - Thread safety
- This function should only be called on the main thread.
- See also
getMice
sdl3-bindgen-sys notes
- FFI safety
- Safe foreign import of
SDL_GetMouseNameForID. The unsafe flavor isgetMouseNameForID. - C declaration
SDL_GetMouseNameForID, defined atSDL3/SDL_mouse.h 266:42
Since: 3.2.0
getMouseFocus :: IO (Ptr SDL_Window) Source #
Get the window which currently has mouse focus.
- Returns
- the window with mouse focus.
- Thread safety
- This function should only be called on the main thread.
sdl3-bindgen-sys notes
- FFI safety
- Unsafe foreign import of
SDL_GetMouseFocus. The safe flavor isgetMouseFocusSafe. - C declaration
SDL_GetMouseFocus, defined atSDL3/SDL_mouse.h 277:42
Since: 3.2.0
getMouseFocusSafe :: IO (Ptr SDL_Window) Source #
Get the window which currently has mouse focus.
- Returns
- the window with mouse focus.
- Thread safety
- This function should only be called on the main thread.
sdl3-bindgen-sys notes
- FFI safety
- Safe foreign import of
SDL_GetMouseFocus. The unsafe flavor isgetMouseFocus. - C declaration
SDL_GetMouseFocus, defined atSDL3/SDL_mouse.h 277:42
Since: 3.2.0
Arguments
| :: Ptr CFloat |
|
| -> Ptr CFloat |
|
| -> IO SDL_MouseButtonFlags |
Query SDL's cache for the synchronous mouse button state and the window-relative SDL-cursor position.
This function returns the cached synchronous state as SDL understands it from the last pump of the event queue.
To query the platform for immediate asynchronous state, use getGlobalMouseState.
Passing non-NULL pointers to x or y will write the destination with respective x or y coordinates relative to the focused window.
In Relative Mode, the SDL-cursor's position usually contradicts the platform-cursor's position as manually calculated from and getGlobalMouseStategetWindowPosition.
- Returns
- a 32-bit bitmask of the button state that can be bitwise-compared against the
SDL_BUTTON_MASK(X)macro. - Thread safety
- This function should only be called on the main thread.
- See also
getGlobalMouseState,getRelativeMouseState
sdl3-bindgen-sys notes
- FFI safety
- Unsafe foreign import of
SDL_GetMouseState. The safe flavor isgetMouseStateSafe. - C declaration
SDL_GetMouseState, defined atSDL3/SDL_mouse.h 310:50
Since: 3.2.0
Arguments
| :: Ptr CFloat |
|
| -> Ptr CFloat |
|
| -> IO SDL_MouseButtonFlags |
Query SDL's cache for the synchronous mouse button state and the window-relative SDL-cursor position.
This function returns the cached synchronous state as SDL understands it from the last pump of the event queue.
To query the platform for immediate asynchronous state, use getGlobalMouseState.
Passing non-NULL pointers to x or y will write the destination with respective x or y coordinates relative to the focused window.
In Relative Mode, the SDL-cursor's position usually contradicts the platform-cursor's position as manually calculated from and getGlobalMouseStategetWindowPosition.
- Returns
- a 32-bit bitmask of the button state that can be bitwise-compared against the
SDL_BUTTON_MASK(X)macro. - Thread safety
- This function should only be called on the main thread.
- See also
getGlobalMouseState,getRelativeMouseState
sdl3-bindgen-sys notes
- FFI safety
- Safe foreign import of
SDL_GetMouseState. The unsafe flavor isgetMouseState. - C declaration
SDL_GetMouseState, defined atSDL3/SDL_mouse.h 310:50
Since: 3.2.0
Arguments
| :: Ptr CFloat |
|
| -> Ptr CFloat |
|
| -> IO SDL_MouseButtonFlags |
Query the platform for the asynchronous mouse button state and the desktop-relative platform-cursor position.
This function immediately queries the platform for the most recent asynchronous state, more costly than retrieving SDL's cached state in .getMouseState
Passing non-NULL pointers to x or y will write the destination with respective x or y coordinates relative to the desktop.
In Relative Mode, the platform-cursor's position usually contradicts the SDL-cursor's position as manually calculated from and getMouseStategetWindowPosition.
This function can be useful if you need to track the mouse outside of a specific window and doesn't fit your needs. For example, it could be useful if you need to track the mouse while dragging a window, where coordinates relative to a window might not be in sync at all times.captureMouse
- Returns
- a 32-bit bitmask of the button state that can be bitwise-compared against the
SDL_BUTTON_MASK(X)macro. - Thread safety
- This function should only be called on the main thread.
- See also
captureMouse,getMouseState,getGlobalMouseState
sdl3-bindgen-sys notes
- FFI safety
- Unsafe foreign import of
SDL_GetGlobalMouseState. The safe flavor isgetGlobalMouseStateSafe. - C declaration
SDL_GetGlobalMouseState, defined atSDL3/SDL_mouse.h 347:50
Since: 3.2.0
getGlobalMouseStateSafe Source #
Arguments
| :: Ptr CFloat |
|
| -> Ptr CFloat |
|
| -> IO SDL_MouseButtonFlags |
Query the platform for the asynchronous mouse button state and the desktop-relative platform-cursor position.
This function immediately queries the platform for the most recent asynchronous state, more costly than retrieving SDL's cached state in .getMouseState
Passing non-NULL pointers to x or y will write the destination with respective x or y coordinates relative to the desktop.
In Relative Mode, the platform-cursor's position usually contradicts the SDL-cursor's position as manually calculated from and getMouseStategetWindowPosition.
This function can be useful if you need to track the mouse outside of a specific window and doesn't fit your needs. For example, it could be useful if you need to track the mouse while dragging a window, where coordinates relative to a window might not be in sync at all times.captureMouse
- Returns
- a 32-bit bitmask of the button state that can be bitwise-compared against the
SDL_BUTTON_MASK(X)macro. - Thread safety
- This function should only be called on the main thread.
- See also
captureMouse,getMouseState,getGlobalMouseState
sdl3-bindgen-sys notes
- FFI safety
- Safe foreign import of
SDL_GetGlobalMouseState. The unsafe flavor isgetGlobalMouseState. - C declaration
SDL_GetGlobalMouseState, defined atSDL3/SDL_mouse.h 347:50
Since: 3.2.0
getRelativeMouseState Source #
Arguments
| :: Ptr CFloat |
|
| -> Ptr CFloat |
|
| -> IO SDL_MouseButtonFlags |
Query SDL's cache for the synchronous mouse button state and accumulated mouse delta since last call.
This function returns the cached synchronous state as SDL understands it from the last pump of the event queue.
To query the platform for immediate asynchronous state, use getGlobalMouseState.
Passing non-NULL pointers to x or y will write the destination with respective x or y deltas accumulated since the last call to this function (or since event initialization).
This function is useful for reducing overhead by processing relative mouse inputs in one go per-frame instead of individually per-event, at the expense of losing the order between events within the frame (e.g. quickly pressing and releasing a button within the same frame).
- Returns
- a 32-bit bitmask of the button state that can be bitwise-compared against the
SDL_BUTTON_MASK(X)macro. - Thread safety
- This function should only be called on the main thread.
- See also
getMouseState,getGlobalMouseState
sdl3-bindgen-sys notes
- FFI safety
- Unsafe foreign import of
SDL_GetRelativeMouseState. The safe flavor isgetRelativeMouseStateSafe. - C declaration
SDL_GetRelativeMouseState, defined atSDL3/SDL_mouse.h 382:50
Since: 3.2.0
getRelativeMouseStateSafe Source #
Arguments
| :: Ptr CFloat |
|
| -> Ptr CFloat |
|
| -> IO SDL_MouseButtonFlags |
Query SDL's cache for the synchronous mouse button state and accumulated mouse delta since last call.
This function returns the cached synchronous state as SDL understands it from the last pump of the event queue.
To query the platform for immediate asynchronous state, use getGlobalMouseState.
Passing non-NULL pointers to x or y will write the destination with respective x or y deltas accumulated since the last call to this function (or since event initialization).
This function is useful for reducing overhead by processing relative mouse inputs in one go per-frame instead of individually per-event, at the expense of losing the order between events within the frame (e.g. quickly pressing and releasing a button within the same frame).
- Returns
- a 32-bit bitmask of the button state that can be bitwise-compared against the
SDL_BUTTON_MASK(X)macro. - Thread safety
- This function should only be called on the main thread.
- See also
getMouseState,getGlobalMouseState
sdl3-bindgen-sys notes
- FFI safety
- Safe foreign import of
SDL_GetRelativeMouseState. The unsafe flavor isgetRelativeMouseState. - C declaration
SDL_GetRelativeMouseState, defined atSDL3/SDL_mouse.h 382:50
Since: 3.2.0
Arguments
| :: Ptr SDL_Window |
|
| -> Float |
|
| -> Float |
|
| -> IO () |
Move the mouse cursor to the given position within the window.
This function generates a mouse motion event if relative mode is not enabled. If relative mode is enabled, you can force mouse events for the warp by setting the SDL_HINT_MOUSE_RELATIVE_WARP_MOTION hint.
Note that this function will appear to succeed, but not actually move the mouse when used over Microsoft Remote Desktop.
- Thread safety
- This function should only be called on the main thread.
- See also
warpMouseGlobal
sdl3-bindgen-sys notes
- FFI safety
- Unsafe foreign import of
SDL_WarpMouseInWindow. The safe flavor iswarpMouseInWindowSafe. - Scalars
- The binding generation has mapped C scalars to native Haskell scalars for this function. Pointers and structs are untouched by this best-effort mapping. Higher-level bindings are expected to map structs and pointers as appropriate.
- C declaration
SDL_WarpMouseInWindow, defined atSDL3/SDL_mouse.h 405:34
Since: 3.2.0
warpMouseInWindowSafe Source #
Arguments
| :: Ptr SDL_Window |
|
| -> Float |
|
| -> Float |
|
| -> IO () |
Move the mouse cursor to the given position within the window.
This function generates a mouse motion event if relative mode is not enabled. If relative mode is enabled, you can force mouse events for the warp by setting the SDL_HINT_MOUSE_RELATIVE_WARP_MOTION hint.
Note that this function will appear to succeed, but not actually move the mouse when used over Microsoft Remote Desktop.
- Thread safety
- This function should only be called on the main thread.
- See also
warpMouseGlobal
sdl3-bindgen-sys notes
- FFI safety
- Safe foreign import of
SDL_WarpMouseInWindow. The unsafe flavor iswarpMouseInWindow. - Scalars
- The binding generation has mapped C scalars to native Haskell scalars for this function. Pointers and structs are untouched by this best-effort mapping. Higher-level bindings are expected to map structs and pointers as appropriate.
- C declaration
SDL_WarpMouseInWindow, defined atSDL3/SDL_mouse.h 405:34
Since: 3.2.0
Move the mouse to the given position in global screen space.
This function generates a mouse motion event.
A failure of this function usually means that it is unsupported by a platform.
Note that this function will appear to succeed, but not actually move the mouse when used over Microsoft Remote Desktop.
- Returns
- true on success or false on failure; call
getErrorfor more information. - Thread safety
- This function should only be called on the main thread.
- See also
warpMouseInWindow
sdl3-bindgen-sys notes
- FFI safety
- Unsafe foreign import of
SDL_WarpMouseGlobal. The safe flavor iswarpMouseGlobalSafe. - Scalars
- The binding generation has mapped C scalars to native Haskell scalars for this function. Pointers and structs are untouched by this best-effort mapping. Higher-level bindings are expected to map structs and pointers as appropriate.
- C declaration
SDL_WarpMouseGlobal, defined atSDL3/SDL_mouse.h 430:34
Since: 3.2.0
Move the mouse to the given position in global screen space.
This function generates a mouse motion event.
A failure of this function usually means that it is unsupported by a platform.
Note that this function will appear to succeed, but not actually move the mouse when used over Microsoft Remote Desktop.
- Returns
- true on success or false on failure; call
getErrorfor more information. - Thread safety
- This function should only be called on the main thread.
- See also
warpMouseInWindow
sdl3-bindgen-sys notes
- FFI safety
- Safe foreign import of
SDL_WarpMouseGlobal. The unsafe flavor iswarpMouseGlobal. - Scalars
- The binding generation has mapped C scalars to native Haskell scalars for this function. Pointers and structs are untouched by this best-effort mapping. Higher-level bindings are expected to map structs and pointers as appropriate.
- C declaration
SDL_WarpMouseGlobal, defined atSDL3/SDL_mouse.h 430:34
Since: 3.2.0
setRelativeMouseTransform Source #
Arguments
| :: SDL_MouseMotionTransformCallback |
|
| -> Ptr Void |
|
| -> IO Bool |
Set a user-defined function by which to transform relative mouse inputs.
This overrides the relative system scale and relative speed scale hints. Should be called prior to enabling relative mouse mode, fails otherwise.
- Returns
- true on success or false on failure; call
getErrorfor more information. - Thread safety
- This function should only be called on the main thread.
sdl3-bindgen-sys notes
- FFI safety
- Unsafe foreign import of
SDL_SetRelativeMouseTransform. The safe flavor issetRelativeMouseTransformSafe: registration; the transform runs during event pumping. - Scalars
- The binding generation has mapped C scalars to native Haskell scalars for this function. Pointers and structs are untouched by this best-effort mapping. Higher-level bindings are expected to map structs and pointers as appropriate.
- C declaration
SDL_SetRelativeMouseTransform, defined atSDL3/SDL_mouse.h 448:34
Since: 3.4.0
setRelativeMouseTransformSafe Source #
Arguments
| :: SDL_MouseMotionTransformCallback |
|
| -> Ptr Void |
|
| -> IO Bool |
Set a user-defined function by which to transform relative mouse inputs.
This overrides the relative system scale and relative speed scale hints. Should be called prior to enabling relative mouse mode, fails otherwise.
- Returns
- true on success or false on failure; call
getErrorfor more information. - Thread safety
- This function should only be called on the main thread.
sdl3-bindgen-sys notes
- FFI safety
- Safe foreign import of
SDL_SetRelativeMouseTransform. The unsafe flavor issetRelativeMouseTransform: registration; the transform runs during event pumping. - Scalars
- The binding generation has mapped C scalars to native Haskell scalars for this function. Pointers and structs are untouched by this best-effort mapping. Higher-level bindings are expected to map structs and pointers as appropriate.
- C declaration
SDL_SetRelativeMouseTransform, defined atSDL3/SDL_mouse.h 448:34
Since: 3.4.0
setWindowRelativeMouseMode Source #
Arguments
| :: Ptr SDL_Window |
|
| -> Bool |
|
| -> IO Bool |
Set relative mouse mode for a window.
While the window has focus and relative mouse mode is enabled, the cursor is hidden, the mouse position is constrained to the window, and SDL will report continuous relative mouse motion even if the mouse is at the edge of the window.
If you'd like to keep the mouse position fixed while in relative mode you can use setWindowMouseRect. If you'd like the cursor to be at a specific location when relative mode ends, you should use before disabling relative mode.warpMouseInWindow
This function will flush any pending mouse motion for this window.
- Returns
- true on success or false on failure; call
getErrorfor more information. - Thread safety
- This function should only be called on the main thread.
- See also
getWindowRelativeMouseMode
sdl3-bindgen-sys notes
- FFI safety
- Unsafe foreign import of
SDL_SetWindowRelativeMouseMode. The safe flavor issetWindowRelativeMouseModeSafe. - Scalars
- The binding generation has mapped C scalars to native Haskell scalars for this function. Pointers and structs are untouched by this best-effort mapping. Higher-level bindings are expected to map structs and pointers as appropriate.
- C declaration
SDL_SetWindowRelativeMouseMode, defined atSDL3/SDL_mouse.h 476:34
Since: 3.2.0
setWindowRelativeMouseModeSafe Source #
Arguments
| :: Ptr SDL_Window |
|
| -> Bool |
|
| -> IO Bool |
Set relative mouse mode for a window.
While the window has focus and relative mouse mode is enabled, the cursor is hidden, the mouse position is constrained to the window, and SDL will report continuous relative mouse motion even if the mouse is at the edge of the window.
If you'd like to keep the mouse position fixed while in relative mode you can use setWindowMouseRect. If you'd like the cursor to be at a specific location when relative mode ends, you should use before disabling relative mode.warpMouseInWindow
This function will flush any pending mouse motion for this window.
- Returns
- true on success or false on failure; call
getErrorfor more information. - Thread safety
- This function should only be called on the main thread.
- See also
getWindowRelativeMouseMode
sdl3-bindgen-sys notes
- FFI safety
- Safe foreign import of
SDL_SetWindowRelativeMouseMode. The unsafe flavor issetWindowRelativeMouseMode. - Scalars
- The binding generation has mapped C scalars to native Haskell scalars for this function. Pointers and structs are untouched by this best-effort mapping. Higher-level bindings are expected to map structs and pointers as appropriate.
- C declaration
SDL_SetWindowRelativeMouseMode, defined atSDL3/SDL_mouse.h 476:34
Since: 3.2.0
getWindowRelativeMouseMode Source #
Arguments
| :: Ptr SDL_Window |
|
| -> IO Bool |
Query whether relative mouse mode is enabled for a window.
- Returns
- true if relative mode is enabled for a window or false otherwise.
- Thread safety
- This function should only be called on the main thread.
- See also
setWindowRelativeMouseMode
sdl3-bindgen-sys notes
- FFI safety
- Unsafe foreign import of
SDL_GetWindowRelativeMouseMode. The safe flavor isgetWindowRelativeMouseModeSafe. - Scalars
- The binding generation has mapped C scalars to native Haskell scalars for this function. Pointers and structs are untouched by this best-effort mapping. Higher-level bindings are expected to map structs and pointers as appropriate.
- C declaration
SDL_GetWindowRelativeMouseMode, defined atSDL3/SDL_mouse.h 490:34
Since: 3.2.0
getWindowRelativeMouseModeSafe Source #
Arguments
| :: Ptr SDL_Window |
|
| -> IO Bool |
Query whether relative mouse mode is enabled for a window.
- Returns
- true if relative mode is enabled for a window or false otherwise.
- Thread safety
- This function should only be called on the main thread.
- See also
setWindowRelativeMouseMode
sdl3-bindgen-sys notes
- FFI safety
- Safe foreign import of
SDL_GetWindowRelativeMouseMode. The unsafe flavor isgetWindowRelativeMouseMode. - Scalars
- The binding generation has mapped C scalars to native Haskell scalars for this function. Pointers and structs are untouched by this best-effort mapping. Higher-level bindings are expected to map structs and pointers as appropriate.
- C declaration
SDL_GetWindowRelativeMouseMode, defined atSDL3/SDL_mouse.h 490:34
Since: 3.2.0
Capture the mouse and to track input outside an SDL window.
Capturing enables your app to obtain mouse events globally, instead of just within your window. Not all video targets support this function. When capturing is enabled, the current window will get all mouse events, but unlike relative mode, no change is made to the cursor and it is not restrained to your window.
This function may also deny mouse input to other windows both those in your application and others on the system so you should use this function sparingly, and in small bursts. For example, you might want to track the mouse while the user is dragging something, until the user releases a mouse button. It is not recommended that you capture the mouse for long periods of time, such as the entire time your app is running. For that, you should probably use or setWindowRelativeMouseModesetWindowMouseGrab, depending on your goals.
While captured, mouse events still report coordinates relative to the current (foreground) window, but those coordinates may be outside the bounds of the window (including negative values). Capturing is only allowed for the foreground window. If the window loses focus while capturing, the capture will be disabled automatically.
While capturing is enabled, the current window will have the SDL_WINDOW_MOUSE_CAPTURE flag set.
Please note that SDL will attempt to "auto capture" the mouse while the user is pressing a button; this is to try and make mouse behavior more consistent between platforms, and deal with the common case of a user dragging the mouse outside of the window. This means that if you are calling only to deal with this situation, you do not have to (although it is safe to do so). If this causes problems for your app, you can disable auto capture by setting the captureMouseSDL_HINT_MOUSE_AUTO_CAPTURE hint to zero.
- Returns
- true on success or false on failure; call
getErrorfor more information. - Thread safety
- This function should only be called on the main thread.
- See also
getGlobalMouseState
sdl3-bindgen-sys notes
- FFI safety
- Unsafe foreign import of
SDL_CaptureMouse. The safe flavor iscaptureMouseSafe. - Scalars
- The binding generation has mapped C scalars to native Haskell scalars for this function. Pointers and structs are untouched by this best-effort mapping. Higher-level bindings are expected to map structs and pointers as appropriate.
- C declaration
SDL_CaptureMouse, defined atSDL3/SDL_mouse.h 538:34
Since: 3.2.0
Capture the mouse and to track input outside an SDL window.
Capturing enables your app to obtain mouse events globally, instead of just within your window. Not all video targets support this function. When capturing is enabled, the current window will get all mouse events, but unlike relative mode, no change is made to the cursor and it is not restrained to your window.
This function may also deny mouse input to other windows both those in your application and others on the system so you should use this function sparingly, and in small bursts. For example, you might want to track the mouse while the user is dragging something, until the user releases a mouse button. It is not recommended that you capture the mouse for long periods of time, such as the entire time your app is running. For that, you should probably use or setWindowRelativeMouseModesetWindowMouseGrab, depending on your goals.
While captured, mouse events still report coordinates relative to the current (foreground) window, but those coordinates may be outside the bounds of the window (including negative values). Capturing is only allowed for the foreground window. If the window loses focus while capturing, the capture will be disabled automatically.
While capturing is enabled, the current window will have the SDL_WINDOW_MOUSE_CAPTURE flag set.
Please note that SDL will attempt to "auto capture" the mouse while the user is pressing a button; this is to try and make mouse behavior more consistent between platforms, and deal with the common case of a user dragging the mouse outside of the window. This means that if you are calling only to deal with this situation, you do not have to (although it is safe to do so). If this causes problems for your app, you can disable auto capture by setting the captureMouseSDL_HINT_MOUSE_AUTO_CAPTURE hint to zero.
- Returns
- true on success or false on failure; call
getErrorfor more information. - Thread safety
- This function should only be called on the main thread.
- See also
getGlobalMouseState
sdl3-bindgen-sys notes
- FFI safety
- Safe foreign import of
SDL_CaptureMouse. The unsafe flavor iscaptureMouse. - Scalars
- The binding generation has mapped C scalars to native Haskell scalars for this function. Pointers and structs are untouched by this best-effort mapping. Higher-level bindings are expected to map structs and pointers as appropriate.
- C declaration
SDL_CaptureMouse, defined atSDL3/SDL_mouse.h 538:34
Since: 3.2.0
Arguments
| :: PtrConst Uint8 |
|
| -> PtrConst Uint8 |
|
| -> Int32 |
|
| -> Int32 |
|
| -> Int32 |
|
| -> Int32 |
|
| -> IO (Ptr SDL_Cursor) |
Create a cursor using the specified bitmap data and mask (in MSB format).
mask has to be in MSB (Most Significant Bit) format.
The cursor width (w) must be a multiple of 8 bits.
The cursor is created in black and white according to the following:
- data=0, mask=1: white
- data=1, mask=1: black
- data=0, mask=0: transparent
- data=1, mask=0: inverted color if possible, black if not.
Cursors created with this function must be freed with .destroyCursor
If you want to have a color cursor, or create your cursor from an SDL_Surface, you should use . Alternately, you can hide the cursor and draw your own as part of your game's rendering, but it will be bound to the framerate.createColorCursor
Also, is available, which provides several readily-available system cursors to pick from.createSystemCursor
- Returns
- a new cursor with the specified parameters on success or NULL on failure; call
getErrorfor more information. - Thread safety
- This function should only be called on the main thread.
- See also
createAnimatedCursor,createColorCursor,createSystemCursor,destroyCursor,setCursor
sdl3-bindgen-sys notes
- FFI safety
- Unsafe foreign import of
SDL_CreateCursor. The safe flavor iscreateCursorSafe. - Scalars
- The binding generation has mapped C scalars to native Haskell scalars for this function. Pointers and structs are untouched by this best-effort mapping. Higher-level bindings are expected to map structs and pointers as appropriate.
- C declaration
SDL_CreateCursor, defined atSDL3/SDL_mouse.h 585:42
Since: 3.2.0
Arguments
| :: PtrConst Uint8 |
|
| -> PtrConst Uint8 |
|
| -> Int32 |
|
| -> Int32 |
|
| -> Int32 |
|
| -> Int32 |
|
| -> IO (Ptr SDL_Cursor) |
Create a cursor using the specified bitmap data and mask (in MSB format).
mask has to be in MSB (Most Significant Bit) format.
The cursor width (w) must be a multiple of 8 bits.
The cursor is created in black and white according to the following:
- data=0, mask=1: white
- data=1, mask=1: black
- data=0, mask=0: transparent
- data=1, mask=0: inverted color if possible, black if not.
Cursors created with this function must be freed with .destroyCursor
If you want to have a color cursor, or create your cursor from an SDL_Surface, you should use . Alternately, you can hide the cursor and draw your own as part of your game's rendering, but it will be bound to the framerate.createColorCursor
Also, is available, which provides several readily-available system cursors to pick from.createSystemCursor
- Returns
- a new cursor with the specified parameters on success or NULL on failure; call
getErrorfor more information. - Thread safety
- This function should only be called on the main thread.
- See also
createAnimatedCursor,createColorCursor,createSystemCursor,destroyCursor,setCursor
sdl3-bindgen-sys notes
- FFI safety
- Safe foreign import of
SDL_CreateCursor. The unsafe flavor iscreateCursor. - Scalars
- The binding generation has mapped C scalars to native Haskell scalars for this function. Pointers and structs are untouched by this best-effort mapping. Higher-level bindings are expected to map structs and pointers as appropriate.
- C declaration
SDL_CreateCursor, defined atSDL3/SDL_mouse.h 585:42
Since: 3.2.0
Arguments
| :: Ptr SDL_Surface |
|
| -> Int32 |
|
| -> Int32 |
|
| -> IO (Ptr SDL_Cursor) |
Create a color cursor.
If this function is passed a surface with alternate representations added with addSurfaceAlternateImage, the surface will be interpreted as the content to be used for 100% display scale, and the alternate representations will be used for high DPI situations if SDL_HINT_MOUSE_DPI_SCALE_CURSORS is enabled. For example, if the original surface is 32x32, then on a 2x macOS display or 200% display scale on Windows, a 64x64 version of the image will be used, if available. If a matching version of the image isn't available, the closest larger size image will be downscaled to the appropriate size and be used instead, if available. Otherwise, the closest smaller image will be upscaled and be used instead.
- Returns
- the new cursor on success or NULL on failure; call
getErrorfor more information. - Thread safety
- This function should only be called on the main thread.
- See also
addSurfaceAlternateImage,createAnimatedCursor,createCursor,createSystemCursor,destroyCursor,setCursor
sdl3-bindgen-sys notes
- FFI safety
- Unsafe foreign import of
SDL_CreateColorCursor. The safe flavor iscreateColorCursorSafe. - Scalars
- The binding generation has mapped C scalars to native Haskell scalars for this function. Pointers and structs are untouched by this best-effort mapping. Higher-level bindings are expected to map structs and pointers as appropriate.
- C declaration
SDL_CreateColorCursor, defined atSDL3/SDL_mouse.h 622:42
Since: 3.2.0
createColorCursorSafe Source #
Arguments
| :: Ptr SDL_Surface |
|
| -> Int32 |
|
| -> Int32 |
|
| -> IO (Ptr SDL_Cursor) |
Create a color cursor.
If this function is passed a surface with alternate representations added with addSurfaceAlternateImage, the surface will be interpreted as the content to be used for 100% display scale, and the alternate representations will be used for high DPI situations if SDL_HINT_MOUSE_DPI_SCALE_CURSORS is enabled. For example, if the original surface is 32x32, then on a 2x macOS display or 200% display scale on Windows, a 64x64 version of the image will be used, if available. If a matching version of the image isn't available, the closest larger size image will be downscaled to the appropriate size and be used instead, if available. Otherwise, the closest smaller image will be upscaled and be used instead.
- Returns
- the new cursor on success or NULL on failure; call
getErrorfor more information. - Thread safety
- This function should only be called on the main thread.
- See also
addSurfaceAlternateImage,createAnimatedCursor,createCursor,createSystemCursor,destroyCursor,setCursor
sdl3-bindgen-sys notes
- FFI safety
- Safe foreign import of
SDL_CreateColorCursor. The unsafe flavor iscreateColorCursor. - Scalars
- The binding generation has mapped C scalars to native Haskell scalars for this function. Pointers and structs are untouched by this best-effort mapping. Higher-level bindings are expected to map structs and pointers as appropriate.
- C declaration
SDL_CreateColorCursor, defined atSDL3/SDL_mouse.h 622:42
Since: 3.2.0
Arguments
| :: Ptr SDL_CursorFrameInfo |
|
| -> Int32 |
|
| -> Int32 |
|
| -> Int32 |
|
| -> IO (Ptr SDL_Cursor) |
Create an animated color cursor.
Animated cursors are composed of a sequential array of frames, specified as surfaces and durations in an array of SDL_CursorFrameInfo structs. The hot spot coordinates are universal to all frames, and all frames must have the same dimensions.
Frame durations are specified in milliseconds. A duration of 0 implies an infinite frame time, and the animation will stop on that frame. To create a one-shot animation, set the duration of the last frame in the sequence to 0.
If this function is passed surfaces with alternate representations added with addSurfaceAlternateImage, the surfaces will be interpreted as the content to be used for 100% display scale, and the alternate representations will be used for high DPI situations. For example, if the original surfaces are 32x32, then on a 2x macOS display or 200% display scale on Windows, a 64x64 version of the image will be used, if available. If a matching version of the image isn't available, the closest larger size image will be downscaled to the appropriate size and be used instead, if available. Otherwise, the closest smaller image will be upscaled and be used instead.
If the underlying platform does not support animated cursors, this function will fall back to creating a static color cursor using the first frame in the sequence.
- Returns
- the new cursor on success or NULL on failure; call
getErrorfor more information. - Thread safety
- This function should only be called on the main thread.
- See also
addSurfaceAlternateImage,createCursor,createColorCursor,createSystemCursor,destroyCursor,setCursor
sdl3-bindgen-sys notes
- FFI safety
- Unsafe foreign import of
SDL_CreateAnimatedCursor. The safe flavor iscreateAnimatedCursorSafe. - Scalars
- The binding generation has mapped C scalars to native Haskell scalars for this function. Pointers and structs are untouched by this best-effort mapping. Higher-level bindings are expected to map structs and pointers as appropriate.
- C declaration
SDL_CreateAnimatedCursor, defined atSDL3/SDL_mouse.h 672:41
Since: 3.4.0
createAnimatedCursorSafe Source #
Arguments
| :: Ptr SDL_CursorFrameInfo |
|
| -> Int32 |
|
| -> Int32 |
|
| -> Int32 |
|
| -> IO (Ptr SDL_Cursor) |
Create an animated color cursor.
Animated cursors are composed of a sequential array of frames, specified as surfaces and durations in an array of SDL_CursorFrameInfo structs. The hot spot coordinates are universal to all frames, and all frames must have the same dimensions.
Frame durations are specified in milliseconds. A duration of 0 implies an infinite frame time, and the animation will stop on that frame. To create a one-shot animation, set the duration of the last frame in the sequence to 0.
If this function is passed surfaces with alternate representations added with addSurfaceAlternateImage, the surfaces will be interpreted as the content to be used for 100% display scale, and the alternate representations will be used for high DPI situations. For example, if the original surfaces are 32x32, then on a 2x macOS display or 200% display scale on Windows, a 64x64 version of the image will be used, if available. If a matching version of the image isn't available, the closest larger size image will be downscaled to the appropriate size and be used instead, if available. Otherwise, the closest smaller image will be upscaled and be used instead.
If the underlying platform does not support animated cursors, this function will fall back to creating a static color cursor using the first frame in the sequence.
- Returns
- the new cursor on success or NULL on failure; call
getErrorfor more information. - Thread safety
- This function should only be called on the main thread.
- See also
addSurfaceAlternateImage,createCursor,createColorCursor,createSystemCursor,destroyCursor,setCursor
sdl3-bindgen-sys notes
- FFI safety
- Safe foreign import of
SDL_CreateAnimatedCursor. The unsafe flavor iscreateAnimatedCursor. - Scalars
- The binding generation has mapped C scalars to native Haskell scalars for this function. Pointers and structs are untouched by this best-effort mapping. Higher-level bindings are expected to map structs and pointers as appropriate.
- C declaration
SDL_CreateAnimatedCursor, defined atSDL3/SDL_mouse.h 672:41
Since: 3.4.0
Arguments
| :: SDL_SystemCursor |
|
| -> IO (Ptr SDL_Cursor) |
Create a system cursor.
- Returns
- a cursor on success or NULL on failure; call
getErrorfor more information. - Thread safety
- This function should only be called on the main thread.
- See also
destroyCursor
sdl3-bindgen-sys notes
- FFI safety
- Unsafe foreign import of
SDL_CreateSystemCursor. The safe flavor iscreateSystemCursorSafe. - C declaration
SDL_CreateSystemCursor, defined atSDL3/SDL_mouse.h 690:42
Since: 3.2.0
createSystemCursorSafe Source #
Arguments
| :: SDL_SystemCursor |
|
| -> IO (Ptr SDL_Cursor) |
Create a system cursor.
- Returns
- a cursor on success or NULL on failure; call
getErrorfor more information. - Thread safety
- This function should only be called on the main thread.
- See also
destroyCursor
sdl3-bindgen-sys notes
- FFI safety
- Safe foreign import of
SDL_CreateSystemCursor. The unsafe flavor iscreateSystemCursor. - C declaration
SDL_CreateSystemCursor, defined atSDL3/SDL_mouse.h 690:42
Since: 3.2.0
Arguments
| :: Ptr SDL_Cursor |
|
| -> IO Bool |
Set the active cursor.
This function sets the currently active cursor to the specified one. If the cursor is currently visible, the change will be immediately represented on the display. SDL_SetCursor(NULL) can be used to force cursor redraw, if this is desired for any reason.
- Returns
- true on success or false on failure; call
getErrorfor more information. - Thread safety
- This function should only be called on the main thread.
- See also
getCursor
sdl3-bindgen-sys notes
- FFI safety
- Unsafe foreign import of
SDL_SetCursor. The safe flavor issetCursorSafe. - Scalars
- The binding generation has mapped C scalars to native Haskell scalars for this function. Pointers and structs are untouched by this best-effort mapping. Higher-level bindings are expected to map structs and pointers as appropriate.
- C declaration
SDL_SetCursor, defined atSDL3/SDL_mouse.h 710:34
Since: 3.2.0
Arguments
| :: Ptr SDL_Cursor |
|
| -> IO Bool |
Set the active cursor.
This function sets the currently active cursor to the specified one. If the cursor is currently visible, the change will be immediately represented on the display. SDL_SetCursor(NULL) can be used to force cursor redraw, if this is desired for any reason.
- Returns
- true on success or false on failure; call
getErrorfor more information. - Thread safety
- This function should only be called on the main thread.
- See also
getCursor
sdl3-bindgen-sys notes
- FFI safety
- Safe foreign import of
SDL_SetCursor. The unsafe flavor issetCursor. - Scalars
- The binding generation has mapped C scalars to native Haskell scalars for this function. Pointers and structs are untouched by this best-effort mapping. Higher-level bindings are expected to map structs and pointers as appropriate.
- C declaration
SDL_SetCursor, defined atSDL3/SDL_mouse.h 710:34
Since: 3.2.0
getCursor :: IO (Ptr SDL_Cursor) Source #
Get the active cursor.
This function returns a pointer to the current cursor which is owned by the library. It is not necessary to free the cursor with .destroyCursor
- Returns
- the active cursor or NULL if there is no mouse.
- Thread safety
- This function should only be called on the main thread.
- See also
setCursor
sdl3-bindgen-sys notes
- FFI safety
- Unsafe foreign import of
SDL_GetCursor. The safe flavor isgetCursorSafe. - C declaration
SDL_GetCursor, defined atSDL3/SDL_mouse.h 726:42
Since: 3.2.0
getCursorSafe :: IO (Ptr SDL_Cursor) Source #
Get the active cursor.
This function returns a pointer to the current cursor which is owned by the library. It is not necessary to free the cursor with .destroyCursor
- Returns
- the active cursor or NULL if there is no mouse.
- Thread safety
- This function should only be called on the main thread.
- See also
setCursor
sdl3-bindgen-sys notes
- FFI safety
- Safe foreign import of
SDL_GetCursor. The unsafe flavor isgetCursor. - C declaration
SDL_GetCursor, defined atSDL3/SDL_mouse.h 726:42
Since: 3.2.0
getDefaultCursor :: IO (Ptr SDL_Cursor) Source #
Get the default cursor.
You do not have to call on the return value, but it is safe to do so.destroyCursor
- Returns
- the default cursor on success or NULL on failure; call
getErrorfor more information. - Thread safety
- This function should only be called on the main thread.
sdl3-bindgen-sys notes
- FFI safety
- Unsafe foreign import of
SDL_GetDefaultCursor. The safe flavor isgetDefaultCursorSafe. - C declaration
SDL_GetDefaultCursor, defined atSDL3/SDL_mouse.h 741:42
Since: 3.2.0
getDefaultCursorSafe :: IO (Ptr SDL_Cursor) Source #
Get the default cursor.
You do not have to call on the return value, but it is safe to do so.destroyCursor
- Returns
- the default cursor on success or NULL on failure; call
getErrorfor more information. - Thread safety
- This function should only be called on the main thread.
sdl3-bindgen-sys notes
- FFI safety
- Safe foreign import of
SDL_GetDefaultCursor. The unsafe flavor isgetDefaultCursor. - C declaration
SDL_GetDefaultCursor, defined atSDL3/SDL_mouse.h 741:42
Since: 3.2.0
Arguments
| :: Ptr SDL_Cursor |
|
| -> IO () |
Free a previously-created cursor.
Use this function to free cursor resources created with , createCursor or createColorCursor.createSystemCursor
- Thread safety
- This function should only be called on the main thread.
- See also
createAnimatedCursor,createColorCursor,createCursor,createSystemCursor
sdl3-bindgen-sys notes
- FFI safety
- Unsafe foreign import of
SDL_DestroyCursor. The safe flavor isdestroyCursorSafe. - C declaration
SDL_DestroyCursor, defined atSDL3/SDL_mouse.h 760:34
Since: 3.2.0
Arguments
| :: Ptr SDL_Cursor |
|
| -> IO () |
Free a previously-created cursor.
Use this function to free cursor resources created with , createCursor or createColorCursor.createSystemCursor
- Thread safety
- This function should only be called on the main thread.
- See also
createAnimatedCursor,createColorCursor,createCursor,createSystemCursor
sdl3-bindgen-sys notes
- FFI safety
- Safe foreign import of
SDL_DestroyCursor. The unsafe flavor isdestroyCursor. - C declaration
SDL_DestroyCursor, defined atSDL3/SDL_mouse.h 760:34
Since: 3.2.0
showCursor :: IO Bool Source #
Show the cursor.
- Returns
- true on success or false on failure; call
getErrorfor more information. - Thread safety
- This function should only be called on the main thread.
- See also
cursorVisible,hideCursor
sdl3-bindgen-sys notes
- FFI safety
- Unsafe foreign import of
SDL_ShowCursor. The safe flavor isshowCursorSafe. - Scalars
- The binding generation has mapped C scalars to native Haskell scalars for this function. Pointers and structs are untouched by this best-effort mapping. Higher-level bindings are expected to map structs and pointers as appropriate.
- C declaration
SDL_ShowCursor, defined atSDL3/SDL_mouse.h 775:34
Since: 3.2.0
showCursorSafe :: IO Bool Source #
Show the cursor.
- Returns
- true on success or false on failure; call
getErrorfor more information. - Thread safety
- This function should only be called on the main thread.
- See also
cursorVisible,hideCursor
sdl3-bindgen-sys notes
- FFI safety
- Safe foreign import of
SDL_ShowCursor. The unsafe flavor isshowCursor. - Scalars
- The binding generation has mapped C scalars to native Haskell scalars for this function. Pointers and structs are untouched by this best-effort mapping. Higher-level bindings are expected to map structs and pointers as appropriate.
- C declaration
SDL_ShowCursor, defined atSDL3/SDL_mouse.h 775:34
Since: 3.2.0
hideCursor :: IO Bool Source #
Hide the cursor.
- Returns
- true on success or false on failure; call
getErrorfor more information. - Thread safety
- This function should only be called on the main thread.
- See also
cursorVisible,showCursor
sdl3-bindgen-sys notes
- FFI safety
- Unsafe foreign import of
SDL_HideCursor. The safe flavor ishideCursorSafe. - Scalars
- The binding generation has mapped C scalars to native Haskell scalars for this function. Pointers and structs are untouched by this best-effort mapping. Higher-level bindings are expected to map structs and pointers as appropriate.
- C declaration
SDL_HideCursor, defined atSDL3/SDL_mouse.h 790:34
Since: 3.2.0
hideCursorSafe :: IO Bool Source #
Hide the cursor.
- Returns
- true on success or false on failure; call
getErrorfor more information. - Thread safety
- This function should only be called on the main thread.
- See also
cursorVisible,showCursor
sdl3-bindgen-sys notes
- FFI safety
- Safe foreign import of
SDL_HideCursor. The unsafe flavor ishideCursor. - Scalars
- The binding generation has mapped C scalars to native Haskell scalars for this function. Pointers and structs are untouched by this best-effort mapping. Higher-level bindings are expected to map structs and pointers as appropriate.
- C declaration
SDL_HideCursor, defined atSDL3/SDL_mouse.h 790:34
Since: 3.2.0
cursorVisible :: IO Bool Source #
Return whether the cursor is currently being shown.
- Returns
trueif the cursor is being shown, orfalseif the cursor is hidden.- Thread safety
- This function should only be called on the main thread.
- See also
hideCursor,showCursor
sdl3-bindgen-sys notes
- FFI safety
- Unsafe foreign import of
SDL_CursorVisible. The safe flavor iscursorVisibleSafe. - Scalars
- The binding generation has mapped C scalars to native Haskell scalars for this function. Pointers and structs are untouched by this best-effort mapping. Higher-level bindings are expected to map structs and pointers as appropriate.
- C declaration
SDL_CursorVisible, defined atSDL3/SDL_mouse.h 805:34
Since: 3.2.0
cursorVisibleSafe :: IO Bool Source #
Return whether the cursor is currently being shown.
- Returns
trueif the cursor is being shown, orfalseif the cursor is hidden.- Thread safety
- This function should only be called on the main thread.
- See also
hideCursor,showCursor
sdl3-bindgen-sys notes
- FFI safety
- Safe foreign import of
SDL_CursorVisible. The unsafe flavor iscursorVisible. - Scalars
- The binding generation has mapped C scalars to native Haskell scalars for this function. Pointers and structs are untouched by this best-effort mapping. Higher-level bindings are expected to map structs and pointers as appropriate.
- C declaration
SDL_CursorVisible, defined atSDL3/SDL_mouse.h 805:34
Since: 3.2.0